Screw-holder for screw-drivers.



S. G. NORTH. SGRBWHOLDBR FOR SCREW DRIVERS. M PLIGATION FILED snPT.9,19o5.

@l 3&9 jl 7% Patented Mar. 2, E909.

citizen of the United SELDEN G. NORTH, OF PHILADELPHIA, PENNSYLV FFICE.

ANIA, ASSIGNOR TO NORTH BROTHERS MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

SCREW-HOLDER FOR SCREW-DRIVERS.

Application filed September 9, 1905.

T o all whom it may concern.'

Be it known that I, SELDEN G. NORTH, a j States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Screw-Holders for I Screw-Drivers, of which the following is a j specification.-

The object of this invention is to'make a simple and effective screw holder for screw drivers which can be sold independent of the screw driver, and which can be readily applied thereto and operated thereby. This object I attain in the following manner, reference being had to the accompanying drawing, in Whic.

Figure 1, is a perspective view showing my invention applied to a screw driver; Fig. 2, is a side view with the jaws forced open l ready to receive a head of a screw; Fig. 3, is a vieiv similar to Fig. 2, with the jaws closed upon the head of screw and Fig. 4, is an end view of the holder.

A is a lscrew driver having a round shank a and flattened end a forming shoulders B is the screw holding attachment having in the present instance two plates b, b forming a body portion, these plates are perforated for the assage of the shank of the screw driver. t will be noticed in referring to Fig. Il, that the perforations are'of suffi-v cient diameter to receive the shank so that' it can be turned in the attachment, and there are notches at each side to allow for the passage of the flattened portion of the screw driver.

Secured to the two plates b, b are spring jaws D, D having their ends cl beveled and rounded to fit the head of a screw. Bent i from the spring jaws D, D between the I plates b b are friction springs e, e which bear against the shank of the screw driver and rejv tain the holder in the position on the shank 'j Specification of Letters Patent.

Patented March 2, 1909.

Serial No. 277,677.

to which it is adjusted. Other means may be used for this purpose without departing from the main feature of this invention.

To use the device, it is first sli ped onto the shank ofthe screw driver, as s own, and when in position the device is held and the screw driver turned so that the. shoulders a2 will force the spring jaws apart as in Fig. 2, the head of a screw is then inserted, the tip of the driver entering the slot in the head of the screw, after w rich the driver is turned, releasing the jaws so that they will close upon the head of the screw, as shown in Fig. 3, the screw can then be held and driven, after the screw has been driven a certain distance, the screw holder can be released by pulling the holder back or turning it on the screw driver, after which the screw can be driven home.

I claim as my invention The combination of a screw driver having a round shank and a attened end wider than the shank, of a screw holder consisting of plates having elongated openings so shaped as to engage the round shank and guide the device while turn thereon, said openings being sufiiciently elongated to allow the plates to pass over the end of the screw driver, and spring jaws carried by said plates, said jaws converging near their outer ends so that they engage the flattened end of the shank and then diverge and reconverge to receive and engage the head of the screw, substantially as described.

' In testimony name to this specification, two subscribing witnesses.

SELDEN G. NORTH.

whereof, I have signed my in the presence o,

Witnesses E. R. LOUGHERY, Jos. H. KLEIN.

permitting it to 

